525025000 has 48 divisors (see below), whose sum is σ = 1230507180. Its totient is φ = 210000000.

The previous prime is 525024989. The next prime is 525025001. The reversal of 525025000 is 520525.

It can be written as a sum of positive squares in 6 ways, for example, as 123343236 + 401681764 = 11106^2 + 20042^2 .

It is not an unprimeable number, because it can be changed into a prime (525025001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14500 + ... + 35500.

Almost surely, 2^525025000 is an apocalyptic number.

525025000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525025000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615253590).

525025000 is an abundant number, since it is smaller than the sum of its proper divisors (705482180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525025000 is an equidigital number, since it uses as much as digits as its factorization.

525025000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21032 (or 21008 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 525025000 is about 22913.4240130104. The cubic root of 525025000 is about 806.7271277983.

Adding to 525025000 its reverse (520525), we get a palindrome (525545525).

The spelling of 525025000 in words is "five hundred twenty-five million, twenty-five thousand".